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【单选题】
The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable(71)of the technical requirements for the software product. During the requirements definition phase, the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform. and each(72)that it must meet. The starting point is usually a set of high-level requirements from the(73)that describe the project or problem. In either case, the requirements definition team formulates an overall concept for the system and the defines(74)showing how the system will be operated, publishes the system and operation concept documents, and conducts a system concept review(SCR). Following the SCR, the team derives(75)requirements for the system from the high level requirements and the system operations concept. Using structured or object-oriented analysis, the team specifies the software functions and algorithms needed to satisfy each detailed requirements.
A.
function
B.
definition
C.
specification
D.
statement
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举一反三
【单选题】下列关于钠泵的叙述,错误的是()
A.
是细胞膜上的镶嵌蛋白质
B.
具有ATP酶的活性
C.
可逆浓度梯度或电位梯度转运Na + 和K +
D.
当细胞外钠离子浓度增多时被激活
E.
当细胞外钾离子浓度增多时被激活
【单选题】在linux终端使用时,如果按下以下的快捷键: ctrl+D 结论是:
A.
无意义
B.
结束键盘输入或文件输入
C.
粘贴
D.
没有正确答案
【单选题】关于钠泵的叙述,下列错误的是
A.
是Na+-K+依赖式ATP酶
B.
细胞分解ATP时排出K+摄入Na+
C.
转运Na+、K+的过程是耦联的
D.
是一种膜内大分子蛋白质
【单选题】下列关于钠泵的叙述,错误的是
A.
是镶嵌在膜上的特殊蛋白质
B.
具有ATP酶的作用
C.
可逆浓度差,主动转运Na’和K’
D.
将细胞内K + 泵出,将膜外的Na + 泵入
E.
可维持膜内外Na + 、K + 的不均匀分布
【单选题】With dinner _____, the lady went on ____ some sewing. A. to prepare; to do B. preparing; doing C. prepared; to do D. to be prepared; doing
A.
to prepare; to do
B.
preparing; doing
C.
prepared; to do
D.
to be prepared; doing
【单选题】上述著作中于1932年6月出版,成为我国第一部较系统的医学伦理学专著的是()
A.
《省心录·论医》
B.
《外科正宗·医家五戒十要》
C.
《医业伦理学》
D.
《医家十要》
E.
《万病回春》
【单选题】听力原文:Whom do you guess is this beautiful suite prepared for? (A) For the honeymoon couple. (B) For people to eat at the end of meal. (C) Yes, I like this kind of sweet. (15)
A.
B.
【单选题】下列关于钠泵的叙述,错误的是()
A.
逆浓度梯度将Na + 从细胞内转运到膜外
B.
逆浓度梯度将K + 由细胞外转运到膜内
C.
建立和维持Na + 和K + 在膜内外的势能贮备
D.
将Na + 转运到膜内,将K + 转运到膜外
【简答题】物流信息的作用包括 a.沟通联系的作用 b.缩短物流管道的作用 c.引导和协调的作用 d.管理控制的作用
【单选题】下列关于钠泵的叙述,错误的是
A.
逆着浓度梯度将 Na离子从细胞内转运到膜外
B.
逆着浓度梯度将 K离子从细胞外转运到膜内
C.
建立和维持 Na和K离子在膜内外的势能储备
D.
顺着浓度梯度将 Na离子转运膜外,将K离子转运到膜内
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